./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product11.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/bin/uautomizer-hJ6jxDFKc3 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7637d350ec387526cc43cbb38f0e4fda058351e3 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 20:22:27,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 20:22:27,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 20:22:27,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 20:22:27,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 20:22:27,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 20:22:27,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 20:22:27,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 20:22:27,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 20:22:27,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 20:22:27,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 20:22:27,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 20:22:27,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 20:22:27,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 20:22:27,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 20:22:27,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 20:22:27,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 20:22:27,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 20:22:27,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 20:22:27,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 20:22:27,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 20:22:27,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 20:22:27,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 20:22:27,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 20:22:27,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 20:22:27,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 20:22:27,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 20:22:27,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 20:22:27,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 20:22:27,566 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 20:22:27,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 20:22:27,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 20:22:27,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 20:22:27,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 20:22:27,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 20:22:27,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 20:22:27,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 20:22:27,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 20:22:27,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 20:22:27,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 20:22:27,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 20:22:27,581 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 20:22:27,626 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 20:22:27,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 20:22:27,630 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 20:22:27,631 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 20:22:27,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 20:22:27,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 20:22:27,639 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 20:22:27,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 20:22:27,640 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 20:22:27,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 20:22:27,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 20:22:27,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 20:22:27,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 20:22:27,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 20:22:27,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 20:22:27,641 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 20:22:27,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 20:22:27,641 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 20:22:27,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 20:22:27,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 20:22:27,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 20:22:27,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 20:22:27,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 20:22:27,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 20:22:27,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 20:22:27,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 20:22:27,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 20:22:27,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 20:22:27,644 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 20:22:27,645 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 20:22:27,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 20:22:27,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 20:22:27,645 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/bin/uautomizer-hJ6jxDFKc3/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7637d350ec387526cc43cbb38f0e4fda058351e3 [2021-10-15 20:22:27,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 20:22:27,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 20:22:27,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 20:22:27,978 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 20:22:27,979 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 20:22:27,980 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/product-lines/minepump_spec1_product11.cil.c [2021-10-15 20:22:28,075 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/bin/uautomizer-hJ6jxDFKc3/data/18a6262fe/bb4fa276a4294821aae6594c60d67885/FLAGdd7bd2968 [2021-10-15 20:22:28,695 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 20:22:28,696 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/sv-benchmarks/c/product-lines/minepump_spec1_product11.cil.c [2021-10-15 20:22:28,710 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/bin/uautomizer-hJ6jxDFKc3/data/18a6262fe/bb4fa276a4294821aae6594c60d67885/FLAGdd7bd2968 [2021-10-15 20:22:28,982 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/bin/uautomizer-hJ6jxDFKc3/data/18a6262fe/bb4fa276a4294821aae6594c60d67885 [2021-10-15 20:22:28,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 20:22:28,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 20:22:29,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 20:22:29,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 20:22:29,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 20:22:29,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:22:28" (1/1) ... [2021-10-15 20:22:29,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3464b5f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:29, skipping insertion in model container [2021-10-15 20:22:29,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:22:28" (1/1) ... [2021-10-15 20:22:29,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 20:22:29,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 20:22:29,369 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/sv-benchmarks/c/product-lines/minepump_spec1_product11.cil.c[6038,6051] [2021-10-15 20:22:29,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:22:29,453 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 20:22:29,507 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/sv-benchmarks/c/product-lines/minepump_spec1_product11.cil.c[6038,6051] [2021-10-15 20:22:29,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:22:29,614 INFO L208 MainTranslator]: Completed translation [2021-10-15 20:22:29,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:29 WrapperNode [2021-10-15 20:22:29,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 20:22:29,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 20:22:29,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 20:22:29,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 20:22:29,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:29" (1/1) ... [2021-10-15 20:22:29,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:29" (1/1) ... [2021-10-15 20:22:29,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 20:22:29,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 20:22:29,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 20:22:29,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 20:22:29,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:29" (1/1) ... [2021-10-15 20:22:29,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:29" (1/1) ... [2021-10-15 20:22:29,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:29" (1/1) ... [2021-10-15 20:22:29,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:29" (1/1) ... [2021-10-15 20:22:29,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:29" (1/1) ... [2021-10-15 20:22:29,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:29" (1/1) ... [2021-10-15 20:22:29,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:29" (1/1) ... [2021-10-15 20:22:29,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 20:22:29,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 20:22:29,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 20:22:29,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 20:22:29,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:29" (1/1) ... [2021-10-15 20:22:29,796 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 20:22:29,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:22:29,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 20:22:29,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 20:22:29,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 20:22:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 20:22:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 20:22:29,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 20:22:30,732 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 20:22:30,733 INFO L299 CfgBuilder]: Removed 70 assume(true) statements. [2021-10-15 20:22:30,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:22:30 BoogieIcfgContainer [2021-10-15 20:22:30,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 20:22:30,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 20:22:30,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 20:22:30,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 20:22:30,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:22:28" (1/3) ... [2021-10-15 20:22:30,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ad9bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:22:30, skipping insertion in model container [2021-10-15 20:22:30,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:29" (2/3) ... [2021-10-15 20:22:30,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ad9bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:22:30, skipping insertion in model container [2021-10-15 20:22:30,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:22:30" (3/3) ... [2021-10-15 20:22:30,748 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product11.cil.c [2021-10-15 20:22:30,759 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 20:22:30,759 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-15 20:22:30,822 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 20:22:30,830 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-15 20:22:30,831 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-15 20:22:30,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 87 transitions, 174 flow [2021-10-15 20:22:30,892 INFO L129 PetriNetUnfolder]: 29/87 cut-off events. [2021-10-15 20:22:30,892 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:22:30,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 87 events. 29/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 132 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-10-15 20:22:30,894 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 87 transitions, 174 flow [2021-10-15 20:22:30,902 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 80 transitions, 160 flow [2021-10-15 20:22:30,917 INFO L129 PetriNetUnfolder]: 17/52 cut-off events. [2021-10-15 20:22:30,917 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:22:30,918 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 20:22:30,918 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:22:30,919 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 20:22:30,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:22:30,926 INFO L82 PathProgramCache]: Analyzing trace with hash -376148163, now seen corresponding path program 1 times [2021-10-15 20:22:30,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:22:30,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134623237] [2021-10-15 20:22:30,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:22:30,937 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:22:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:22:31,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:22:31,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:22:31,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134623237] [2021-10-15 20:22:31,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134623237] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:22:31,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:22:31,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-15 20:22:31,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967920497] [2021-10-15 20:22:31,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-15 20:22:31,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:22:31,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-15 20:22:31,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-15 20:22:31,330 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 87 [2021-10-15 20:22:31,334 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 80 transitions, 160 flow. Second operand has 2 states, 2 states have (on average 80.5) internal successors, (161), 2 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:31,335 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 20:22:31,335 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 87 [2021-10-15 20:22:31,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 20:22:31,373 INFO L129 PetriNetUnfolder]: 21/75 cut-off events. [2021-10-15 20:22:31,374 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:22:31,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 75 events. 21/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 105 event pairs, 0 based on Foata normal form. 4/56 useless extension candidates. Maximal degree in co-relation 75. Up to 3 conditions per place. [2021-10-15 20:22:31,377 INFO L132 encePairwiseOnDemand]: 82/87 looper letters, 0 selfloop transitions, 0 changer transitions 0/75 dead transitions. [2021-10-15 20:22:31,379 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 75 transitions, 150 flow [2021-10-15 20:22:31,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-15 20:22:31,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-15 20:22:31,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 165 transitions. [2021-10-15 20:22:31,395 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9482758620689655 [2021-10-15 20:22:31,396 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 165 transitions. [2021-10-15 20:22:31,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 165 transitions. [2021-10-15 20:22:31,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:22:31,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 165 transitions. [2021-10-15 20:22:31,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:31,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:31,423 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:31,425 INFO L186 Difference]: Start difference. First operand has 55 places, 80 transitions, 160 flow. Second operand 2 states and 165 transitions. [2021-10-15 20:22:31,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 75 transitions, 150 flow [2021-10-15 20:22:31,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 75 transitions, 150 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 20:22:31,434 INFO L242 Difference]: Finished difference. Result has 56 places, 75 transitions, 150 flow [2021-10-15 20:22:31,436 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=150, PETRI_PLACES=56, PETRI_TRANSITIONS=75} [2021-10-15 20:22:31,437 INFO L334 CegarLoopForPetriNet]: 55 programPoint places, 1 predicate places. [2021-10-15 20:22:31,438 INFO L470 AbstractCegarLoop]: Abstraction has has 56 places, 75 transitions, 150 flow [2021-10-15 20:22:31,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.5) internal successors, (161), 2 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:31,439 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 20:22:31,439 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:22:31,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 20:22:31,440 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 20:22:31,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:22:31,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1422905060, now seen corresponding path program 1 times [2021-10-15 20:22:31,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:22:31,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691166967] [2021-10-15 20:22:31,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:22:31,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:22:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:22:31,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:22:31,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:22:31,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691166967] [2021-10-15 20:22:31,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691166967] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:22:31,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:22:31,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 20:22:31,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733887362] [2021-10-15 20:22:31,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 20:22:31,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:22:31,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 20:22:31,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 20:22:31,635 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 87 [2021-10-15 20:22:31,636 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 75 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:31,636 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 20:22:31,636 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 87 [2021-10-15 20:22:31,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 20:22:31,649 INFO L129 PetriNetUnfolder]: 12/40 cut-off events. [2021-10-15 20:22:31,649 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:22:31,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 40 events. 12/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 42. Up to 3 conditions per place. [2021-10-15 20:22:31,650 INFO L132 encePairwiseOnDemand]: 85/87 looper letters, 1 selfloop transitions, 1 changer transitions 0/40 dead transitions. [2021-10-15 20:22:31,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 40 transitions, 84 flow [2021-10-15 20:22:31,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 20:22:31,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 20:22:31,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 234 transitions. [2021-10-15 20:22:31,655 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.896551724137931 [2021-10-15 20:22:31,655 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 234 transitions. [2021-10-15 20:22:31,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 234 transitions. [2021-10-15 20:22:31,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:22:31,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 234 transitions. [2021-10-15 20:22:31,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:31,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:31,667 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:31,667 INFO L186 Difference]: Start difference. First operand has 56 places, 75 transitions, 150 flow. Second operand 3 states and 234 transitions. [2021-10-15 20:22:31,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 40 transitions, 84 flow [2021-10-15 20:22:31,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 40 transitions, 84 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 20:22:31,672 INFO L242 Difference]: Finished difference. Result has 32 places, 40 transitions, 82 flow [2021-10-15 20:22:31,674 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=32, PETRI_TRANSITIONS=40} [2021-10-15 20:22:31,675 INFO L334 CegarLoopForPetriNet]: 55 programPoint places, -23 predicate places. [2021-10-15 20:22:31,676 INFO L470 AbstractCegarLoop]: Abstraction has has 32 places, 40 transitions, 82 flow [2021-10-15 20:22:31,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:31,676 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 20:22:31,677 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:22:31,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-15 20:22:31,678 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 20:22:31,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:22:31,679 INFO L82 PathProgramCache]: Analyzing trace with hash 474467475, now seen corresponding path program 1 times [2021-10-15 20:22:31,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:22:31,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056228065] [2021-10-15 20:22:31,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:22:31,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:22:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:22:31,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:22:31,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:22:31,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056228065] [2021-10-15 20:22:31,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056228065] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:22:31,807 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:22:31,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 20:22:31,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724143710] [2021-10-15 20:22:31,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-15 20:22:31,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:22:31,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-15 20:22:31,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-15 20:22:31,811 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 87 [2021-10-15 20:22:31,812 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 40 transitions, 82 flow. Second operand has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:31,813 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 20:22:31,813 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 87 [2021-10-15 20:22:31,813 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 20:22:32,010 INFO L129 PetriNetUnfolder]: 32/106 cut-off events. [2021-10-15 20:22:32,010 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 20:22:32,011 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 106 events. 32/106 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 163 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 119. Up to 9 conditions per place. [2021-10-15 20:22:32,012 INFO L132 encePairwiseOnDemand]: 81/87 looper letters, 6 selfloop transitions, 6 changer transitions 0/44 dead transitions. [2021-10-15 20:22:32,012 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 44 transitions, 114 flow [2021-10-15 20:22:32,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 20:22:32,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-15 20:22:32,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 416 transitions. [2021-10-15 20:22:32,017 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7969348659003831 [2021-10-15 20:22:32,017 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 416 transitions. [2021-10-15 20:22:32,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 416 transitions. [2021-10-15 20:22:32,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:22:32,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 416 transitions. [2021-10-15 20:22:32,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:32,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 87.0) internal successors, (609), 7 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:32,025 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 87.0) internal successors, (609), 7 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:32,025 INFO L186 Difference]: Start difference. First operand has 32 places, 40 transitions, 82 flow. Second operand 6 states and 416 transitions. [2021-10-15 20:22:32,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 44 transitions, 114 flow [2021-10-15 20:22:32,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 44 transitions, 113 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-15 20:22:32,029 INFO L242 Difference]: Finished difference. Result has 39 places, 43 transitions, 115 flow [2021-10-15 20:22:32,030 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=115, PETRI_PLACES=39, PETRI_TRANSITIONS=43} [2021-10-15 20:22:32,030 INFO L334 CegarLoopForPetriNet]: 55 programPoint places, -16 predicate places. [2021-10-15 20:22:32,031 INFO L470 AbstractCegarLoop]: Abstraction has has 39 places, 43 transitions, 115 flow [2021-10-15 20:22:32,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:32,032 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 20:22:32,032 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:22:32,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-15 20:22:32,033 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 20:22:32,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:22:32,034 INFO L82 PathProgramCache]: Analyzing trace with hash 2106923728, now seen corresponding path program 1 times [2021-10-15 20:22:32,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:22:32,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629363128] [2021-10-15 20:22:32,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:22:32,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:22:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:22:32,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:22:32,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:22:32,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629363128] [2021-10-15 20:22:32,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629363128] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:22:32,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:22:32,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 20:22:32,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777820802] [2021-10-15 20:22:32,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-15 20:22:32,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:22:32,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 20:22:32,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 20:22:32,161 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 87 [2021-10-15 20:22:32,162 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 43 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:32,162 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 20:22:32,162 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 87 [2021-10-15 20:22:32,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 20:22:32,345 INFO L129 PetriNetUnfolder]: 136/407 cut-off events. [2021-10-15 20:22:32,346 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-10-15 20:22:32,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 407 events. 136/407 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1819 event pairs, 4 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 528. Up to 54 conditions per place. [2021-10-15 20:22:32,352 INFO L132 encePairwiseOnDemand]: 80/87 looper letters, 6 selfloop transitions, 12 changer transitions 0/54 dead transitions. [2021-10-15 20:22:32,353 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 54 transitions, 173 flow [2021-10-15 20:22:32,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-15 20:22:32,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-15 20:22:32,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 541 transitions. [2021-10-15 20:22:32,358 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7772988505747126 [2021-10-15 20:22:32,358 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 541 transitions. [2021-10-15 20:22:32,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 541 transitions. [2021-10-15 20:22:32,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:22:32,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 541 transitions. [2021-10-15 20:22:32,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 67.625) internal successors, (541), 8 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:32,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 87.0) internal successors, (783), 9 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:32,367 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 87.0) internal successors, (783), 9 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:32,368 INFO L186 Difference]: Start difference. First operand has 39 places, 43 transitions, 115 flow. Second operand 8 states and 541 transitions. [2021-10-15 20:22:32,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 54 transitions, 173 flow [2021-10-15 20:22:32,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 54 transitions, 169 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-15 20:22:32,373 INFO L242 Difference]: Finished difference. Result has 48 places, 53 transitions, 184 flow [2021-10-15 20:22:32,373 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=184, PETRI_PLACES=48, PETRI_TRANSITIONS=53} [2021-10-15 20:22:32,374 INFO L334 CegarLoopForPetriNet]: 55 programPoint places, -7 predicate places. [2021-10-15 20:22:32,374 INFO L470 AbstractCegarLoop]: Abstraction has has 48 places, 53 transitions, 184 flow [2021-10-15 20:22:32,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:32,375 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 20:22:32,375 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:22:32,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-15 20:22:32,376 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 20:22:32,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:22:32,377 INFO L82 PathProgramCache]: Analyzing trace with hash 507351174, now seen corresponding path program 1 times [2021-10-15 20:22:32,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:22:32,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446484928] [2021-10-15 20:22:32,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:22:32,378 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:22:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:22:32,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:22:32,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:22:32,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446484928] [2021-10-15 20:22:32,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446484928] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:22:32,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:22:32,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 20:22:32,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489630107] [2021-10-15 20:22:32,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-15 20:22:32,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:22:32,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 20:22:32,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 20:22:32,529 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 87 [2021-10-15 20:22:32,533 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 53 transitions, 184 flow. Second operand has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:32,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 20:22:32,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 87 [2021-10-15 20:22:32,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 20:22:32,652 INFO L129 PetriNetUnfolder]: 140/567 cut-off events. [2021-10-15 20:22:32,652 INFO L130 PetriNetUnfolder]: For 161/161 co-relation queries the response was YES. [2021-10-15 20:22:32,655 INFO L84 FinitePrefix]: Finished finitePrefix Result has 955 conditions, 567 events. 140/567 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2820 event pairs, 4 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 945. Up to 96 conditions per place. [2021-10-15 20:22:32,656 INFO L132 encePairwiseOnDemand]: 80/87 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2021-10-15 20:22:32,656 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 58 transitions, 261 flow [2021-10-15 20:22:32,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 20:22:32,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-15 20:22:32,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 301 transitions. [2021-10-15 20:22:32,659 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6919540229885057 [2021-10-15 20:22:32,659 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 301 transitions. [2021-10-15 20:22:32,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 301 transitions. [2021-10-15 20:22:32,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:22:32,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 301 transitions. [2021-10-15 20:22:32,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:32,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:32,664 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:32,664 INFO L186 Difference]: Start difference. First operand has 48 places, 53 transitions, 184 flow. Second operand 5 states and 301 transitions. [2021-10-15 20:22:32,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 58 transitions, 261 flow [2021-10-15 20:22:32,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 58 transitions, 261 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 20:22:32,671 INFO L242 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2021-10-15 20:22:32,672 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2021-10-15 20:22:32,672 INFO L334 CegarLoopForPetriNet]: 55 programPoint places, -6 predicate places. [2021-10-15 20:22:32,673 INFO L470 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2021-10-15 20:22:32,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:22:32,676 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 20:22:32,677 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 20:22:32,677 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 20:22:32,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-15 20:22:32,683 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 20:22:32,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 08:22:32 BoogieIcfgContainer [2021-10-15 20:22:32,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 20:22:32,691 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 20:22:32,691 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 20:22:32,691 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 20:22:32,692 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:22:30" (3/4) ... [2021-10-15 20:22:32,695 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-15 20:22:32,720 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-15 20:22:32,721 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-15 20:22:32,722 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-15 20:22:32,723 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-15 20:22:32,723 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-15 20:22:32,724 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 20:22:32,724 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 20:22:32,801 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 20:22:32,801 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 20:22:32,805 INFO L168 Benchmark]: Toolchain (without parser) took 3813.10 ms. Allocated memory is still 119.5 MB. Free memory was 84.7 MB in the beginning and 58.0 MB in the end (delta: 26.8 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. [2021-10-15 20:22:32,806 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 81.8 MB. Free memory was 52.9 MB in the beginning and 52.9 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:22:32,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 626.32 ms. Allocated memory is still 119.5 MB. Free memory was 84.7 MB in the beginning and 88.4 MB in the end (delta: -3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 20:22:32,807 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.58 ms. Allocated memory is still 119.5 MB. Free memory was 88.4 MB in the beginning and 85.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:22:32,808 INFO L168 Benchmark]: Boogie Preprocessor took 69.99 ms. Allocated memory is still 119.5 MB. Free memory was 85.5 MB in the beginning and 83.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:22:32,808 INFO L168 Benchmark]: RCFGBuilder took 950.45 ms. Allocated memory is still 119.5 MB. Free memory was 83.8 MB in the beginning and 48.2 MB in the end (delta: 35.6 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2021-10-15 20:22:32,810 INFO L168 Benchmark]: TraceAbstraction took 1952.68 ms. Allocated memory is still 119.5 MB. Free memory was 47.8 MB in the beginning and 63.0 MB in the end (delta: -15.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:22:32,810 INFO L168 Benchmark]: Witness Printer took 110.26 ms. Allocated memory is still 119.5 MB. Free memory was 63.0 MB in the beginning and 58.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 20:22:32,813 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 81.8 MB. Free memory was 52.9 MB in the beginning and 52.9 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 626.32 ms. Allocated memory is still 119.5 MB. Free memory was 84.7 MB in the beginning and 88.4 MB in the end (delta: -3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.58 ms. Allocated memory is still 119.5 MB. Free memory was 88.4 MB in the beginning and 85.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.99 ms. Allocated memory is still 119.5 MB. Free memory was 85.5 MB in the beginning and 83.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 950.45 ms. Allocated memory is still 119.5 MB. Free memory was 83.8 MB in the beginning and 48.2 MB in the end (delta: 35.6 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1952.68 ms. Allocated memory is still 119.5 MB. Free memory was 47.8 MB in the beginning and 63.0 MB in the end (delta: -15.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 110.26 ms. Allocated memory is still 119.5 MB. Free memory was 63.0 MB in the beginning and 58.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 408]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 408]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 408]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 59 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 11.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1864.1ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 749.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 74.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 12 SDtfs, 37 SDslu, 15 SDs, 0 SdLazy, 58 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 189.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 35.7ms SsaConstructionTime, 260.2ms SatisfiabilityAnalysisTime, 496.4ms InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 218 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-15 20:22:32,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5517ae9-8287-4821-9754-ce18356dba7a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...